Board Thread:Pokémon Help/@comment-30804097-20170622202141/@comment-30804097-20170622223946

Tigerload, thx, but the reason why Steelix has Roar instead of Earthquake is to, first, temporarily get rid of some Pokemon who are setting up for a sweep or to Baton Pass, and to second, get some Stealth Rock damage from vulnerable Pokemon like Charizard.